Dear Miss Wenger Berger,

These inkblots have been in the public domain since 1973 (50 years after the death of Hermann Rorschach) - this is according to Swiss law.  Further, they are in the public domain in the United States of America where they are hosted.  I am well aware of the fact that various groups use legal threats to try to keep the test blots secret.  I am not intimidated by these threats.  They will not be removed from my site.

I would also suggest that you look up the Streisand Effect and advise your clients of it - let me summarise (as quoted by Wikipedia):

"The Streisand effect is an Internet phenomenon where an attempt to censor or remove a piece of information backfires, causing the information to be widely publicized. Examples of such attempts include censoring a photograph, a number, a file, or a website (for example via a cease-and-desist letter). Instead of being suppressed, the information quickly receives extensive publicity, often being widely mirrored across the Internet, or distributed on file-sharing networks."

A copy of your letter and this response is now online at http://listverse.com/

Jamie Frater